Plasma cutting is the process of cutting steel and metals of different thicknesses with a plasma torch. Plasma cutter is used for cutting steel, metal and non-ferrous materials which are less than 1 inch. When compared to mechanical method of cutting, plasma cutting is much better as its faster and easily makes better non-linear cuts.
Things to look for when purchasing a plasma cutting machine
It can be a bit hard for you to select a plasma cutter especially if its new to you as there as so many models from different companies in the market. Therefore there are things that you should take into consideration before purchasing.
Speed
You should choose a machine based on the amount of work you intend to with it. You will need a machine with faster speed if you intend to use it for mass production. It’s important to know the thickness of metals being cut to enable you calculate the production rates per hour. Most of the manufacturers will provide you with cutting speed charts of different machines that will allow you compare the rates.
Metal thickness
knowing the metal thickness will help you determine which type of machine is best for you. Plasma cutting machines are rated on their amperage and cutting ability. Thus, if you intend to often cut thick materials, consider using a lower amperage machine. For frequent cutting of thick materials, use a high amperage machine. Nonetheless, do not buy a machine that cannot produce quality cuts.
The Machine
A machine with the least number of consumable parts is presumably the best as its less likely to replace them since they do not degrade easily even after a long time in service. It’s good to look for a manufacturers who sell machines with less consumable parts and likewise you should look into the manufacturers specifications for information on durability of the parts. Compare all the machines for more clarification.
Cutting quality
Check whether the machine has the ability to produce quality cuts and this can be done by testing different machines travelling at the same speed and choose the one that offers the best quality. A good machine will produce a tight and focused arc without any irregularities.
Portability
Its important to note that if the machine is to be moved to the material to be cut, or has to be transported to work sites or has to be moved around, you might consider choosing one that is light enough for you to move it. If the machine has to be kept in one place and the materials are brought to it, then you can choose the appropriate one. However, recent machines are compact and light enough to be carried with a handle.
Machine working visibility
Machine visibility is facilitated by the torch which is why a small torch or one with an extended nozzle will be most effective as you will clearly see what you are cutting.
Comfort ability
Look for a machine that is simple and easy to operate. You must also be comfortable when operating it. It should have an easy-to-read control panel.
Buy from a reputable manufacturer who offer after-sales services. Make a wise selection and your plasma cutter will serve you for many years.